Riku stopped and peered into a little window where warm light streamed out. That time…he’d seen Sora smiling. Sora laughing with his new friends… Riku didn’t really want to remember it. All that filled his heart was regret. Why hadn’t he done something then…?
The boy stood beside the small brick house. Light spilled from the window into the dim streets. Sora was inside. The boy stared intently at the scene. “You see? It’s just as I told you. While you toiled away trying to find your dear friend, he quite simply replaced you with some new companions.” A woman was speaking from behind him- Maleficent. I just stood there, gazing into the window, and I couldn’t move. I could see Sora laughing with his friends. He hadn’t found Kairi yet, but he was smiling all the same. Smiling with other people who weren’t us. I was just so angry…and lonely… and sad… “Evidently, he values them far more than he does you,” murmured Maleficent. Is that true? Maybe it is. Maybe Sora’s already forgotten about me.
– Chain of Memories Novel, I thought this was an interesting insight into Riku’s mind during this scene, since we never get to know exactly what Riku is thinking or feeling in the game, in his own words. The first part is the real Riku thinking back on it when he finds the house in the card version of Traverse Town, the second part is Repliku experiencing Riku’s memory.